condition	mean	min	max
4 h after light	18.8	18.8	18.8
8 h after light	7.949999999999999	6.2	9.7
12 h after light	4.05	4.0	4.1
4 h after dark	6.4	5.5	7.3
8 h after dark	4.6	4.3	4.9
12 h after dark	14.7	8.2	21.2